有没有人知道如何在PHPUnit中可靠地区分FALSE和NULL?
我正在尝试区分断言中的返回值中的NULL和FALSE。
以下代码失败了:
$this->assertNotEquals(FALSE, NULL);
这些断言都通过了:
$this->assertFalse(NULL);
$this->assertNull(FALSE);
编辑:为了提供一些背景,这是为了区分错误状态(FALSE)和空结果(NULL)。为确保函数正确返回,我需要区分两者。
谢谢。
编辑...针对我正在测试的一些问题,我正在添加测试。
Class testNullFalse extends PHPUnit_Framework_TestCase{
public function test_null_not_false (){
$this->assertNotEquals(FALSE, NULL, "False and null are not the same");
}
public function test_null_is_false (){
$this->assertFalse(NULL, "Null is clearly not FALSE");
}
public function test_false_is_null (){
$this->assertNull(FALSE, "False is clearly not NULL");
}
public function test_false_equals_null(){
$this->assertEquals(FALSE, NULL, "False and null are not equal");
}
public function test_false_sameas_null(){
$this->assertSame(FALSE, NULL, "False and null are not the same");
}
public function test_false_not_sameas_null(){
$this->assertNotSame(FALSE, NULL, "False and null are not the same");
}
}
然后是结果。
PHPUnit 3.5.10 by Sebastian Bergmann.
FFF.F.
Time: 0 seconds, Memory: 5.50Mb
There were 4 failures:
1) testNullFalse::test_null_not_false
False and null are not the same
Failed asserting that <null> is not equal to <boolean:false>.
2) testNullFalse::test_null_is_false
Null is clearly not FALSE
Failed asserting that <null> is false.
3) testNullFalse::test_false_is_null
False is clearly not NULL
Failed asserting that <boolean:false> is null.
4) testNullFalse::test_false_sameas_null
False and null are not the same
<null> does not match expected type "boolean".
FAILURES!
Tests: 6, Assertions: 6, Failures: 4.